On the Origins of Extreme Velocity Stars as Revealed by Large-scale Galactic Surveys

On the Origins of Extreme Velocity Stars as Revealed by Large-scale Galactic Surveys

We assemble a large sample of 12,784 high-velocity stars with total velocity V _GSR ≥ 300 km s ^−1 , selected from RAVE DR5, SDSS DR12, LAMOST DR8, APOGEE DR16, GALAH DR2, and Gaia EDR3. In this sample, 52 are marginally hypervelocity star (HVS) candidates that have V _GSR exceeding their local esca...

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Bibliographic Details
Main Authors:	Qing-Zheng Li, Yang Huang, Xiao-Bo Dong, Hua-Wei Zhang, Timothy C. Beers, Zhen Yuan
Format:	Article
Language:	English
Published:	IOP Publishing 2023-01-01
Series:	The Astronomical Journal
Subjects:	Hypervelocity stars Black holes Sagittarius dwarf spheroidal galaxy Galaxy kinematics Galaxy dynamics
Online Access:	https://doi.org/10.3847/1538-3881/acd1dc

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